See Running WinSCP on OS X in Wine.

I don't know of many software that are both PC and Mac, but there has been previous discussion here about a Mac version.

I doubt there will be a Mac version but many user have suggested good alternatives for the Mac. the "WineBottler" suggestion may work for you. Instructions are in the thread below.

• WinSCP for Mac
  
• Equivalent for Mac
  

I know WinSCP is Windows only. But since most software now days is both Mac and PC, have there been any thoughts to making a Mac version for this? I've started running both Mac and PC now and there is just nothing like WinSCP out there...especially on Mac. The closest I've tried is FileZilla (Mac and PC) but it doesn't work with PuTTY nicely and ownership permissions are non existent. Let me know!